A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2006; you can also visit the original URL.
The file type is application/pdf
.
Two-color quantum-well infrared photodetector with voltage tunable peaks
2002
Applied Physics Letters
A two-color quantum-well infrared photodetector with voltage tunable detection peaks is demonstrated. It is based on electron transfer between two asymmetric coupled quantum wells under an applied bias. At 10 K, the peak detection wavelength is 7.5 m for positive bias when the electrons reside in one of the wells, and switches to 8.8 m at a large negative bias when the electrons are transferred to the other well. The electron activation behavior of dark current in this detector depends on both
doi:10.1063/1.1447004
fatcat:3uljbqyu3ncplnc52vikxu6g4q